CN104259196A - Method for remediating heavy metal polluted soil by comprehensively utilizing biochemical resources - Google Patents
Method for remediating heavy metal polluted soil by comprehensively utilizing biochemical resources Download PDFInfo
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- CN104259196A CN104259196A CN201410557231.2A CN201410557231A CN104259196A CN 104259196 A CN104259196 A CN 104259196A CN 201410557231 A CN201410557231 A CN 201410557231A CN 104259196 A CN104259196 A CN 104259196A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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Abstract
The invention discloses a method for remediating heavy metal polluted soil by comprehensively utilizing biochemical resources. The method comprises the following three steps: spraying a pesticide, enriching earthworms for remediation and performing microbial decomposition, wherein the pesticide in the pesticide spraying process is prepared from the following materials in parts by mass: 280-320 parts of organic fertilizer, 28-32 parts of a microbial agent, 0.05-0.1 part of pyrethrum, 0.03-0.09 part of derris and 0.02-0.06 part of bacillus thuringiensis powder. According to the method, the soil fertility can be improved, pests in the soil and on the surface can be killed, the microbial decomposition process is added, the effect is remarkable, and the operation is easy.
Description
Technical field
The invention discloses a kind of soil remediation method, especially relate to the method fully utilizing biochemical resource restoration of soil polluted by heavy metal, belong to soil remediation method field.
Background technology
Heavy metal pollution of soil refers to because metal joins in soil by mankind's activity, causes heavy metal in soil apparently higher than primary content and the phenomenon causing eco-environmental quality to worsen.The heavy metal of contaminated soil mainly comprises the significant elements of bio-toxicity such as mercury (Hg), cadmium (Cd), plumbous (Pb), chromium (Cr) and metalloid arsenic (As), and has the element such as zinc (Zn), copper (Cu), nickel (Ni) of certain toxicity.Main from agricultural chemicals, waste water, mud and atmospheric sedimentation etc., if mercury is mainly from mercury-containing waste water, cadmium, lead contamination are mainly from smelting discharge and automobile exhaust gas sedimentation, and arsenic is then widely used as pesticide, bactericide, rat poison and herbicide.Excessive heavy metal can cause physiological function of plants disorder, trophic disturbance, the element such as cadmium, mercury concentration coefficient in crop grain is higher, even if exceed food hygienic standard, plant growth, growth and output is not affected yet, in addition mercury, arsenic can weaken and suppress nitrated in soil, amonifying bacteria is movable, affects Nitrogen supplying.Heavy metal contaminants mobility in soil is very little, and not easily with water leaching, be not microbial degradation, after entering human body by food chain, potential hazard is very big, should be specifically noted that and prevents heavy metal to soil pollution.
Current soil reclamation activities, according to processing mode, after process, whether soil locations changes, and original position can be divided into administer and dystopy improvement.Dystopy Environment control risk is lower, instant effect and system process predictability is higher, but cost is high, large to environmental perturbation.Comparatively speaking, original position is administered then more economical and practical, simple to operate.According to the difference of Processing tecchnics and principle, contaminated soil Treatment process can be divided into: engineering control measure and physical chemistry repair two large classes.Engineering control measure mainly comprises: soil moved in improve the original, soil removal and replacement, go table soil and deep ploughing the measure such as to dig; Physical chemistry reparation mainly comprises: curing/stabilizing, electro reclamation, complexing drip washing, steam lixiviate, redox, agricultural are repaired, biological prosthetic etc.Recovery technique for heavy metal pollution of soil mainly contains: phytoremediation, in-situ chemical drip washing, ex-situ chemical washing, and soil function is improved, solidification recovery technique, physical separation recovery technique, vitrifying reparation, thermodynamics reparation, Thermal desorption is repaired, electromotion repairing technique, soil removal and replacement reparation etc.
Notification number CN 101947539B(application number 201010248855.8) Chinese patent literature disclose a kind of soil remediation method processing heavy metal contaminants, by the content of beary metal height in soil, soil is divided into three classes, i.e. serious pollution soil, intermediate pollution soil and light contamination soil, restorative procedure for serious pollution soil first carries out chemical leaching, then carry out earthworm bioaccumulation reparation and phytoremediation; Restorative procedure for the soil of intermediate pollution comprises earthworm bioaccumulation reparation and phytoremediation; Restorative procedure for light contamination soil is phytoremediation.Publication No. CN 102076436 B(application number 200980124086.6) Chinese patent literature disclose a kind of soil remediation method, comprise the following steps: corrupt split particle joined the place containing one or more metal pollutants thus makes at least some of one or more metal pollutants described by described particle chelating, and breeding in described place with plant.Publication No. CN103833274A(application number 201310751031.6) Chinese patent literature disclose a kind of heavy metal pollution soil consolidator and using method thereof, curing agent is the combination of Binder Materials, biological carbon, string and stabilizing agent, in curing agent, the quality of each material is added according to the percentage composition of heavy metal polluted soil dry weight, Binder Materials 10-15%, biological carbon 5%, string 10%, stabilizing agent 1%.Order of addition is followed successively by stabilizing agent, biological carbon, string and Binder Materials.In stabilization process, add chemical stabilizer and biological carbon, also can make its passivation by Adsorption of Heavy Metals, lose animal migration, preparing heavy metal polluted soil mud for later stage chemical reaction provides condition, whole processing procedure no dust pollution, without sewage discharge more than needed.Add string, effectively can prevent the cracking after conventional solidified dose of curing heavy metal Polluted Soil, improve the durability of firming body.
Main flow soil restoring technology now, although method is more, all existing defects, such as complicated operation, rehabilitation cost are high, therefore still need the more simple and effective soil remediation method of research invention one.
Summary of the invention
Not enough for prior art, the object of this invention is to provide a kind of method of restoration of soil polluted by heavy metal, there is simple to operate, that cost is low, applied widely, environmental risk is low feature.
Technical scheme of the present invention is:
Fully utilize the method for biochemical resource restoration of soil polluted by heavy metal, comprise insecticide spraying, earthworm bioaccumulation reparation, microbial decomposition three processes.Pesticide in wherein said insecticide spraying process, is made up of llowing group of materials, is mass parts: fertilizer 280-320 part, microbial bacterial agent 28-32 part, Dalmatian chrysanthemum 0.05-0.1 part, trifoliate jewelvine 0.03-0.09 part and Dipel powder 0.02-0.06 part.
Preferred version is: fertilizer 290-310 part, microbial bacterial agent 29-31 part, Dalmatian chrysanthemum 0.06-0.09 part, trifoliate jewelvine 0.05-0.07 part and Dipel powder 0.03-0.05 part.
What be more preferably is: fertilizer 300 parts, microbial bacterial agent 30 parts, Dalmatian chrysanthemum 0.08 part, trifoliate jewelvine 0.06 part and 0.04 part, Dipel powder.
The preparation technology of described pesticide is:
1. by fertilizer as on aseptic plastic sheeting, shakeout, cover aseptic plastic sheeting ultraviolet sterilization 1-5 days (preferably 3 days), lift thin film, be placed in add shady and coolly microbial bacterial agent mixing for subsequent use;
2. Dalmatian chrysanthemum and trifoliate jewelvine are placed in the container of non iron, 30 minutes are soaked by the warm water that temperature is 10-20 DEG C, water consumption is 3-5 times (preferably 4 times) of raw material weight, be placed on smokeless stove fire, seal little fire and decoct 30-50 minute (preferably 40 minutes), leave standstill 5-10 hour (preferably 7.5 hours), get supernatant stand-by;
3. Dipel powder is together put into dispenser, is stirred with waddy, by step 2. gained supernatant join in dispenser, mixing, add in sprayer, be watered, be sprayed at uniformly step 1. gained have on thing, obtain pesticide.
Described insecticide spraying process is: described pesticide is sprinkling upon soil top uniformly, is turned over by soil even with rooter, airing 1-3 days (preferably 2 days).
Described earthworm repair process is:
1. the earthworm cultivated is put into the soil of spraying insecticide, watered a water every 1 day, water in the 11 points-2 pm in the morning at every turn;
2. earthworm is collected: stopped watering at first 4 days that collect earthworm, will be laid on soil surface by decomposed leaves or stalk, attracts earthworm movable on top layer, collects earthworm.
Described microbial decomposition process is: dung beetle is positioned over the soil collecting earthworm, after 4 days, collects dung beetle.
Above-mentioned three repair processes form one-period, and one-period lasts two months, and land remediation needs three cycles of circulation, terminate to the September from annual lunar calendar March.
Each raw material effect is respectively:
Fertilizer: be commonly called as farm manure, refers to the slow-release fertilizer containing materials such as large number of biological material, plant and animal residues, excreta, biological wastes.Not only containing a great number of elements, trace element that plant is required in fertilizer, also containing abundant organic nutrient, fertilizer is the most comprehensive fertilizer.The effect of fertilizer in agricultural production is mainly manifested in the following aspects: after one, improvement soil, culture fertility organic fertilizer are manured into soil, organic mass-energy improves soil physical chemistry situation and biological nature effectively, vegetable soil, strengthen fertilizer supply and preservation ability and the buffer capacity of soil, good edaphic condition is created in the growth for crop.Two, increase yield, raising quality organic fertilizer contain abundant organic matter and various nutrient, for crops provide nutrition.After fertilizer decomposition, for soil microbial activity provides energy and nutriment, promote microbial activities, accelerate organic matter decomposition, the active material of generation etc. can promote the growth of crop and improve the quality of agricultural product.Three, improve the utilization rate fertilizer of fertilizer and contain that nutrient is many but relative amount is low, slowly, and chemical fertilizer unit nutrient content is high in release, and composition is few, and release is fast.Both use by reasonable coordination, mutually supplement, and the organic acid that organic matter decomposition produces can also promote the dissolving of mineral nutrient in soil and chemical fertilizer.Fertilizer and chemical fertilizer are mutually promoted, and are conducive to Crop, improve the utilization rate of fertilizer.
Microbial bacterial agent: objective microbe (effective bacterium) expands through suitability for industrialized production the active bacteria formulation that numerous aft-loaded airfoil makes.Main component: comprise bacillus coagulans, bacillus megaterium, azotobacter vinelandii, colloid bacillus cereus, aspergillus oryzae, long handle wood are mould.It has directly or indirectly improves soil, recovery soil fertility, maintains rhizosphere microflora balance, the effects such as degraded poisonous and harmful substances; Be applied to agricultural production, by the vital movement of wherein contained microorganism, increase supply or the Promoting plant growth of plant nutrient, improve quality of agricultural product and agroecological environment, this product is purchased from love Promised Land, Shandong bio tech ltd.
Dalmatian chrysanthemum: the insecticidal constituent containing 4 kinds of 0.4-2% in Dalmatian chrysanthemum head sequence inflorescence, i.e. pyrethrin first, second (pyrethrinI, II) and cinerin first, second (cinerinI, II).Insecticidal power is the strongest with deinsectization element first.But above-mentioned 4 kinds of compositions are unstable, are easily hydrolyzed and lose efficacy.The pharmacological action of desinsection is the nerve of benumbing insect; After insect is poisoning, from the beginning of vomiting, diarrhea, wriggle before and after health, then benumb, can lethally die, the length of lethal time is different according to dose and caste.General insect, through benumb drunk after, can recover in 24 hours; After housefly is poisoning, all benumbed in 10 minutes, death rate 60-70%.To joint echiuran, fish, amphibious and reptile class is also poisonous; Not obvious to birds, mammality toxicity.The insecticidal effect of pyrethrin first is stronger than pyrethrin second 10 times; The virulence of cinerin first and pyrethrin first is suitable, and the virulence of cinerin second and pyrethrin second is suitable.
Trifoliate jewelvine: trifoliate jewelvine, belongs to pulse family liana, climbing shrub, all only bald.Odd number winglike compound leaf.The life of raceme armpit or side are born on old branch; Anthocaulus consor, is slightly longer than calyx; Calyx is bell; Corolla butterfly, pink.Pod is flat and thin, tiltedly avette or square is circular.August at florescence.Really September phase.Its root is containing insecticide active substance---rotenone and analog.Insecticidal rotenone spectrum is wide, and can prevent and treat 800 various pests, be one of three great tradition pesticide plants.Root, stem: fly eradication maggot, and be used as agricultural chemical insecticide.Branch, leaf: eczema is controlled in external application, and Fengshi Guanjie swells and ache, treating swelling and pain by traumatic injury (skin does not break).This product is containing poisonous rotenone, and poisoning insect effect is fine.Trifoliate jewelvine is as agricultural insecticidal medicine, and the strongest with the virulence of rotenone in composition, deguelin takes second place, and all the other are extremely weak.
Dipel: Dipel applicable crops is widely. be widely used in the various plants such as brassicaceous vegetable, solanaceous vegetables, melon vegetables, tobacco, paddy rice, rice, Chinese sorghum, soybean, peanut, sweet potato, cotton, tea tree, apple, pears, peach, jujube, oranges and tangerines, sour jujube; Be mainly used in preventing and treating lepidoptera pest, as cabbage caterpillar, diamondback moth, sweet moth, prodenia litura, lopper worm, oriental tobacco budworm, corn borer, rice leaf roller, striped rice borer.
In the method for remediating heavy metal soil of the present invention, innovative point is the sprinkling process adding pesticide, and also have special pesticide, this pesticide to be combined with chemicals by fertilizer and the autonomic drug with disinsection efficiency and is prepared from, can soil fertility be improved, the insect on inside soil and earth's surface can also be killed; Also add this process of microbial decomposition, effectively can decompose microorganism, and be utilize dung beetle to decompose, do not consume manpower, cost is low.
Detailed description of the invention
Describe technical scheme of the present invention in detail below in conjunction with embodiment and experimental example, but protection domain is not by this restriction.The present invention is raw materials used all can be bought from market, and such as microorganism used therefor microbial inoculum is the complex micro organism fungicide that Shijiazhuang Fen Doufei industry Science and Technology Ltd. produces; The microbial-bacterial fertilizer that this biotech inc rich, Shandong produces also can be used for the present invention.The mealybug that Dipel powder used is produced purchased from Zhengzhou Huang Pu agricultural science and technology Co., Ltd must control board Dipel powder.
embodiment 1fully utilize the method for biochemical resource restoration of soil polluted by heavy metal, comprise insecticide spraying, earthworm bioaccumulation reparation, microbial decomposition three processes.Described pesticide, is prepared from by llowing group of materials, is mass parts: fertilizer 280kg, microbial bacterial agent 28kg, Dalmatian chrysanthemum 0.05kg, trifoliate jewelvine 0.03kg and Dipel powder 0.02kg.
The preparation technology of described pesticide is:
1. by fertilizer as on aseptic plastic sheeting, shakeout, cover aseptic plastic sheeting ultraviolet sterilization 1 day, lift thin film, be placed in add shady and coolly microbial bacterial agent mixing for subsequent use;
2. be placed in the container of non iron by Dalmatian chrysanthemum and trifoliate jewelvine, soak 30 minutes by the warm water that temperature is 10-20 DEG C, water consumption is 3 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 30 minutes, leave standstill 5 hours, get supernatant stand-by;
3. Dipel powder is together put into dispenser, is stirred with waddy, by step 2. gained supernatant join in dispenser, mixing, add in sprayer, be watered, be sprayed at uniformly step 1. gained have on thing, obtain pesticide.
Described insecticide spraying process is: pesticide is sprinkling upon soil top uniformly, is turned over by soil even with rooter, airing 1 day.
Described earthworm repair process is:
1. the earthworm cultivated is put into the soil of spraying insecticide, watered a water every 1 day, water in the 11 points-2 pm in the morning at every turn;
2. earthworm is collected: stopped watering at first 4 days that collect earthworm, will be laid on soil surface by decomposed leaves or stalk, attracts earthworm movable on top layer, collects earthworm.
Described microbial decomposition process is: dung beetle is positioned over the soil collecting earthworm, after 4 days, collects dung beetle.
embodiment 2fully utilize the method for biochemical resource restoration of soil polluted by heavy metal, comprise insecticide spraying, earthworm bioaccumulation reparation, microbial decomposition three processes.Described pesticide, is prepared from by llowing group of materials, is mass parts: fertilizer 320kg, microbial bacterial agent 32kg, Dalmatian chrysanthemum 0.1kg, trifoliate jewelvine 0.09kg and Dipel powder 0.06kg.
The preparation technology of described pesticide is:
1. by fertilizer as on aseptic plastic sheeting, shakeout, cover aseptic plastic sheeting ultraviolet sterilization 5 days, lift thin film, be placed in add shady and coolly microbial bacterial agent mixing for subsequent use;
2. be placed in the container of non iron by Dalmatian chrysanthemum and trifoliate jewelvine, soak 30 minutes by the warm water that temperature is 10-20 DEG C, water consumption is 5 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 50 minutes, leave standstill 10 hours, get supernatant stand-by;
3. Dipel powder is together put into dispenser, is stirred with waddy, by step 2. gained supernatant join in dispenser, mixing, add in sprayer, be watered, be sprayed at uniformly step 1. gained have on thing, obtain pesticide.
Described insecticide spraying process is: pesticide is sprinkling upon soil top uniformly, is turned over by soil even with rooter, airing 3 days.
Described earthworm repair process is:
1. described pesticide is sprinkling upon soil top uniformly, soil is turned over even with rooter, after 3 days, put into the earthworm cultivated;
2. watered a water every 1 day, water in the 11 points-2 pm in the morning at every turn;
3. earthworm is collected: stopped watering at first 4 days that collect earthworm, will be laid on soil surface by decomposed leaves or stalk, attracts earthworm movable on top layer, collects earthworm.
Described microbial decomposition process is: dung beetle is positioned over the soil collecting earthworm, after 4 days, collects dung beetle.
embodiment 3fully utilize the method for biochemical resource restoration of soil polluted by heavy metal, comprise insecticide spraying, earthworm bioaccumulation reparation, microbial decomposition three processes.Described pesticide, is prepared from by llowing group of materials, is mass parts: fertilizer 290kg, microbial bacterial agent 29kg, Dalmatian chrysanthemum 0.06kg, trifoliate jewelvine 0.05kg and Dipel powder 0.03kg.
The preparation technology of described pesticide is:
1. by fertilizer as on aseptic plastic sheeting, shakeout, cover aseptic plastic sheeting ultraviolet sterilization 2 days, lift thin film, be placed in add shady and coolly microbial bacterial agent mixing for subsequent use;
2. be placed in the container of non iron by Dalmatian chrysanthemum and trifoliate jewelvine, soak 30 minutes by the warm water that temperature is 10-20 DEG C, water consumption is 3.5 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 35 minutes, leave standstill 6 hours, get supernatant stand-by;
3. Dipel powder is together put into dispenser, is stirred with waddy, by step 2. gained supernatant join in dispenser, mixing, add in sprayer, be watered, be sprayed at uniformly step 1. gained have on thing, obtain pesticide.
Described insecticide spraying process is: pesticide is sprinkling upon soil top uniformly, is turned over by soil even with rooter, airing 1 day.
Described earthworm repair process is:
1. the earthworm cultivated is put into the soil of spraying insecticide, watered a water every 1 day, water in the 11 points-2 pm in the morning at every turn;
2. earthworm is collected: stopped watering at first 4 days that collect earthworm, will be laid on soil surface by decomposed leaves or stalk, attracts earthworm movable on top layer, collects earthworm.
Described microbial decomposition process is: dung beetle is positioned over the soil collecting earthworm, after 4 days, collects dung beetle.
embodiment 4fully utilize the method for biochemical resource restoration of soil polluted by heavy metal, comprise insecticide spraying, earthworm bioaccumulation reparation, microbial decomposition three processes.Described pesticide, is prepared from by llowing group of materials, is mass parts: fertilizer 310kg, microbial bacterial agent 31kg, Dalmatian chrysanthemum 0.09kg, trifoliate jewelvine 0.07kg and Dipel powder 0.05kg.
The preparation technology of described pesticide is:
1. by fertilizer as on aseptic plastic sheeting, shakeout, cover aseptic plastic sheeting ultraviolet sterilization 4 days, lift thin film, be placed in add shady and coolly microbial bacterial agent mixing for subsequent use;
2. be placed in the container of non iron by Dalmatian chrysanthemum and trifoliate jewelvine, soak 30 minutes by the warm water that temperature is 10-20 DEG C, water consumption is 4.5 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 45 minutes, leave standstill 8 hours, get supernatant stand-by;
3. Dipel powder is together put into dispenser, is stirred with waddy, by step 2. gained supernatant join in dispenser, mixing, add in sprayer, be watered, be sprayed at uniformly step 1. gained have on thing, obtain pesticide.
Described insecticide spraying process is: pesticide is sprinkling upon soil top uniformly, is turned over by soil even with rooter, airing 3 days.
Described earthworm repair process is:
1. the earthworm cultivated is put into the soil of spraying insecticide, watered a water every 1 day, water in the 11 points-2 pm in the morning at every turn;
2. earthworm is collected: stopped watering at first 4 days that collect earthworm, will be laid on soil surface by decomposed leaves or stalk, attracts earthworm movable on top layer, collects earthworm.
Described microbial decomposition process is: dung beetle is positioned over the soil collecting earthworm, after 4 days, collects dung beetle.
embodiment 5fully utilize the method for biochemical resource restoration of soil polluted by heavy metal, comprise insecticide spraying, earthworm bioaccumulation reparation, microbial decomposition three processes.Described pesticide, is prepared from by llowing group of materials, is mass parts: fertilizer 300kg, microbial bacterial agent 30kg, Dalmatian chrysanthemum 0.08kg, trifoliate jewelvine 0.06kg and Dipel powder 0.04kg.
The preparation technology of described pesticide is:
1. by fertilizer as on aseptic plastic sheeting, shakeout, cover aseptic plastic sheeting ultraviolet sterilization 3 days, lift thin film, be placed in add shady and coolly microbial bacterial agent mixing for subsequent use;
2. be placed in the container of non iron by Dalmatian chrysanthemum and trifoliate jewelvine, soak 30 minutes by the warm water that temperature is 10-20 DEG C, water consumption is 4 times of raw material weight, is placed on smokeless stove fire, seals little fire and decocts 40 minutes, leave standstill 7.5 hours, get supernatant stand-by;
3. Dipel powder is together put into dispenser, is stirred with waddy, by step 2. gained supernatant join in dispenser, mixing, add in sprayer, be watered, be sprayed at uniformly step 1. gained have on thing, obtain pesticide.
Described insecticide spraying process is: pesticide is sprinkling upon soil top uniformly, is turned over by soil even with rooter, airing 2 days.
Described earthworm repair process is:
1. the earthworm cultivated is put into the soil of spraying insecticide, watered a water every 1 day, water in the 11 points-2 pm in the morning at every turn;
2. earthworm is collected: stopped watering at first 4 days that collect earthworm, will be laid on soil surface by decomposed leaves or stalk, attracts earthworm movable on top layer, collects earthworm.
Described microbial decomposition process is: dung beetle is positioned over the soil collecting earthworm, after 4 days, collects dung beetle.
test example 1embodiment 5 gained fully utilizes the practical application of the method for biochemical resource restoration of soil polluted by heavy metal:
Test plot: choose heavy metal pollution soil, according to lattice method, every 100m gets a sample point, chooses 20 altogether, detects its content of beary metal, duplicate measurements twice, gets the content of beary metal that average is this trial zone.
Test method: experimental field use-case 5 gained fully utilizes the method for biochemical resource restoration of soil polluted by heavy metal, three repair processes are one-period, one-period lasts two months, and soil remediation needs three cycles of circulation altogether, terminates to the September from annual lunar calendar March.
Test index: heavy metal cadmium Cd, copper Cu, mercury Hg, zinc Zn, plumbous Pb.According to national standard, content of beary metal with Cd<0.3 mg/kg, Cu<50 mg/kg, Hg<0.3 mg/kg, Zn<150mg/kg, Pb<50mg/kg for final purpose.
Test effect is in table 1.
Table 1 is content of beary metal (mg/kg) before and after soil remediation experimental field
The method of the biochemical resource restoration of soil polluted by heavy metal of comprehensive utilization of the present invention, has more novelty compared with original technology, is more applicable to the reparation of heavy-metal contaminated soil, simple to operate, cost is lower, Be very effective.Prove through overtesting, the heavy metal cadmium Cd in soil, copper Cu, mercury Hg, zinc Zn, plumbous Pb content, after the repair process of six months, fall is obvious, and reaches and finally limit target.
It should be pointed out that detailed description of the invention is the more representational example of the present invention, obvious technical scheme of the present invention is not limited to above-described embodiment, can also have a lot of distortion.Those of ordinary skill in the art, within the spirit and principles in the present invention all, any amendment, replacement, improvement etc. done, all should be included within protection scope of the present invention.
Claims (9)
1. fully utilize the method for biochemical resource restoration of soil polluted by heavy metal, it is characterized in that, comprise insecticide spraying, earthworm bioaccumulation reparation, microbial decomposition three processes.
2. method according to claim 1, it is characterized in that, pesticide used in described insecticide spraying process is primarily of fertilizer 280-320 part, microbial bacterial agent 28-32 part, Dalmatian chrysanthemum 0.05-0.1 part, trifoliate jewelvine 0.03-0.09 part and Dipel powder 0.02-0.06 part are prepared from, and are mass parts.
3. method according to claim 1, it is characterized in that, described in described insecticide spraying process, pesticide is prepared from primarily of fertilizer 290-310 part, microbial bacterial agent 29-31 part, Dalmatian chrysanthemum 0.06-0.09 part, trifoliate jewelvine 0.05-0.07 part and Dipel powder 0.03-0.05 part, is mass parts.
4. method according to claim 1, it is characterized in that, described in described insecticide spraying process, pesticide is prepared from primarily of fertilizer 300 parts, microbial bacterial agent 30 parts, Dalmatian chrysanthemum 0.08 part, trifoliate jewelvine 0.06 part and 0.04 part, Dipel powder, is mass parts.
5., according to the arbitrary described method of claim 2-4, it is characterized in that, the preparation technology of described pesticide is:
1. by fertilizer as on aseptic plastic sheeting, shakeout, cover aseptic plastic sheeting ultraviolet sterilization 1-5 days (preferably 3 days), lift thin film, be placed in add shady and coolly microbial bacterial agent mixing for subsequent use;
2. Dalmatian chrysanthemum and trifoliate jewelvine are placed in the container of non iron, 30 minutes are soaked by the warm water that temperature is 10-20 DEG C, water consumption is 3-5 times (preferably 4 times) of raw material weight, be placed on smokeless stove fire, seal little fire and decoct 30-50 minute (preferably 40 minutes), leave standstill 5-10 hour (preferably 7.5 hours), get supernatant stand-by;
3. Dipel powder is together put into dispenser, is stirred with waddy, by step 2. gained supernatant join in dispenser, mixing, add in sprayer, be watered, be sprayed at uniformly step 1. gained have on thing, obtain pesticide.
6. method according to claim 1, is characterized in that, described insecticide spraying process is: described pesticide is sprinkling upon soil top uniformly, is turned over by soil even with rooter, airing 1-3 days (preferably 2 days).
7. method according to claim 1, is characterized in that, described earthworm bioaccumulation repair process is:
1. the earthworm cultivated is put into the soil of spraying insecticide, watered a water every 1 day, water in the 11 points-2 pm in the morning at every turn;
2. earthworm is collected: stopped watering at first 4 days that collect earthworm, will be laid on soil surface by decomposed leaves or stalk, attracts earthworm movable on top layer, collects earthworm.
8. method according to claim 1, is characterized in that, is: dung beetle is positioned over the soil collecting earthworm in described microbial decomposition process, after 4 days, collects dung beetle.
9. method according to claim 1, is characterized in that, three repair processes form one-periods, and one-period lasts two months, and land remediation needs three cycles of circulation, terminates to the September from annual lunar calendar March.
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| CN201610154486.3A CN105798055A (en) | 2014-10-21 | 2014-10-21 | Low-cost method for remediation of heavy metal contaminated soil |
| CN201610154488.2A CN105598160A (en) | 2014-10-21 | 2014-10-21 | Soil restoration method |
| CN201410557231.2A CN104259196B (en) | 2014-10-21 | 2014-10-21 | Fully utilize the method for biochemical resource restoration of soil polluted by heavy metal |
| CN201610154465.1A CN105689388A (en) | 2014-10-21 | 2014-10-21 | Soil remediation method with low cost |
| CN201510741630.9A CN105312311A (en) | 2014-10-21 | 2014-10-21 | Method for repairing heavy metal contaminated soil through biochemical resources |
| CN201510741474.6A CN105290090A (en) | 2014-10-21 | 2014-10-21 | Method for remedying heavy metal contaminated soil by comprehensively utilizing biochemical resources |
| CN201510741493.9A CN105290091A (en) | 2014-10-21 | 2014-10-21 | Method for remedying heavy metal contaminated soil |
| CN201510742073.2A CN105290093A (en) | 2014-10-21 | 2014-10-21 | Biochemical remediation method of heavy metal contaminated soil |
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| CN201510742073.2A Division CN105290093A (en) | 2014-10-21 | 2014-10-21 | Biochemical remediation method of heavy metal contaminated soil |
| CN201510741630.9A Division CN105312311A (en) | 2014-10-21 | 2014-10-21 | Method for repairing heavy metal contaminated soil through biochemical resources |
| CN201610154465.1A Division CN105689388A (en) | 2014-10-21 | 2014-10-21 | Soil remediation method with low cost |
| CN201510741493.9A Division CN105290091A (en) | 2014-10-21 | 2014-10-21 | Method for remedying heavy metal contaminated soil |
| CN201610154488.2A Division CN105598160A (en) | 2014-10-21 | 2014-10-21 | Soil restoration method |
| CN201510741474.6A Division CN105290090A (en) | 2014-10-21 | 2014-10-21 | Method for remedying heavy metal contaminated soil by comprehensively utilizing biochemical resources |
| CN201610154486.3A Division CN105798055A (en) | 2014-10-21 | 2014-10-21 | Low-cost method for remediation of heavy metal contaminated soil |
| CN201610154464.7A Division CN105710118A (en) | 2014-10-21 | 2014-10-21 | Method for remediation of heavy metal contaminated soil |
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| CN201610154465.1A Withdrawn CN105689388A (en) | 2014-10-21 | 2014-10-21 | Soil remediation method with low cost |
| CN201610154486.3A Withdrawn CN105798055A (en) | 2014-10-21 | 2014-10-21 | Low-cost method for remediation of heavy metal contaminated soil |
| CN201510741493.9A Pending CN105290091A (en) | 2014-10-21 | 2014-10-21 | Method for remedying heavy metal contaminated soil |
| CN201610154488.2A Withdrawn CN105598160A (en) | 2014-10-21 | 2014-10-21 | Soil restoration method |
| CN201410557231.2A Active CN104259196B (en) | 2014-10-21 | 2014-10-21 | Fully utilize the method for biochemical resource restoration of soil polluted by heavy metal |
| CN201510742073.2A Pending CN105290093A (en) | 2014-10-21 | 2014-10-21 | Biochemical remediation method of heavy metal contaminated soil |
| CN201510741474.6A Pending CN105290090A (en) | 2014-10-21 | 2014-10-21 | Method for remedying heavy metal contaminated soil by comprehensively utilizing biochemical resources |
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| CN201610154486.3A Withdrawn CN105798055A (en) | 2014-10-21 | 2014-10-21 | Low-cost method for remediation of heavy metal contaminated soil |
| CN201510741493.9A Pending CN105290091A (en) | 2014-10-21 | 2014-10-21 | Method for remedying heavy metal contaminated soil |
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| CN109848203A (en) * | 2019-03-23 | 2019-06-07 | 中国农业科学院农田灌溉研究所 | A kind of restorative procedure for Cadmium in Soil of degrading |
| CN110012686A (en) * | 2019-05-17 | 2019-07-16 | 山东省农业科学院农业资源与环境研究所 | Soil fertility improved device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104259196B (en) | 2016-03-30 |
| CN105598160A (en) | 2016-05-25 |
| CN105290090A (en) | 2016-02-03 |
| CN105689388A (en) | 2016-06-22 |
| CN105312311A (en) | 2016-02-10 |
| CN105290091A (en) | 2016-02-03 |
| CN105798055A (en) | 2016-07-27 |
| CN105290093A (en) | 2016-02-03 |
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